Valve.



G. E. GROOKSHANK.

VALVE.

APPLICATION FILED OCT. 7, 1909.

986,694, Y Patented Mar. 14, 1911.

3 SHEETS-SHEET 1.

IA/l/ENTOI? 6 ECIOO/fs/mn G. E. OROOKSHANK.

VALVE.

APPLICATION FILED 001'. 7,1909.

Patented Mar.14,1911.

3 SHEETSSHEET 2.

G. E. CROOKSHANK. VALVE.

APPLICATION FILED OCT. 7, 1909.

986,694. Patented Mar.14,1911.

s SHEETSQSHEET a.

. MTA/E55E- [AWE/W01? certain new mer ts "in Valves, of \vlnch'the following 1s a' troiuga shut oif by UNITED STATE$ PATENT 015 m. f

GEORGE E. CROOKSHANK, OF INDIANA, rnnnsvnvamanssreuon, BY DIRECT AND -mnsnnass1Gnmnnrs, or ONE-THIRD T mun CROOKSHANK am) o E-Tnmn'ro s AN'K, a citizen of the United States of America, residing at Indiana, in the county o f fflndia na and'Stat'e of Pennsylvania, have i and useful Improvereference being had therein to the accompanying drawing.

nnprovementsin .valves, and more ularly to that typeof valve. adapted to atically shut offa supply ofgas due I reduction of pressure within the gas stipply' 1')ipe,. either by a burst hose. connec i the .gas company conthe main supply,oa bursting of the gasi'iiliai'ns from the supply, or any such acc1 dents that may provide-a novel valve wherein positive and rel able means are employed for closing the val e' when .the pressurewithin the gas sup- ;c'j ply is reduced or shut-off.

islnother object of the invention is to pro vide an automatie gas valve which will remain ,in' a closed position unless manually actuated to allow gas to pass through the consuming either artificial or natural -gas,

the. valve-preventing a waste of gasand asphyxiation.

cipal objects of my" invention, it will be e'asy to observe other objects after reference I attain the above objects by valvecon strnot ion that can be between a burner. and the meterinterposed upon a gas supply line, the valvebeing l0- cated preferably in the cellar of a building wherein it will be inconspicuous and out of the road relative to a burner or compartment in which the-same is located.

With vsuch an understanding of the prinis? made to the drawings forming a part of mis specification showing the detailed eon- EDITH ,I. ENGLE, BOTH or INDIANA, P N vsYLvANI-ai j VALVE; I

Specification Letters Patent; Application filedflctober 7', mos. s ia1 no.}5'2 1,4e9.

. sedation, which win, be hereinafter as:

invention relates to certain new and.

.occur as to reduce the sup conveniently -located Patented Mar, 191i.

scribed and then claimed. I

a, \Vhile I show in the accompanying 'drawmg what I believe to be a practical ex'nbpdi ment of my invention, stillit-is to be understood that the structural elements thereof can be varied or changed, 'as to the size, pmportion =and manner of assenibl'age'withou't depart' pg from the spirit of the 'inventic'i'i. In the dmwingz eFigure is-a side elevation'of the valve. "Fig. 2 is a plan of the' same. 'Figr. f3 is the valves-actuating mechanism. 'Figfifiis In the drawingsthereference numeral 1 denotes L-SGCt-IOD. of pipe having" the" ends,

a longitudinal sectional view. FIg.-4'IS an elevatlonfof faiportlon of a' cross sectionalrv'iew taken -on line w,,:v of Fig. 3.- 5 Fig.6 isagfperspective view of :t re- "leaselever, and Figi'? is a perspective .viewof a spring forming part of the valve niech- 'anis1..,-'.. ply fot'gas to a gas burner, stove, furnace or: ,si 'nilai; structure,

rte primary object of my invention is-tov thereotzprovided with reduction nipples 2,

and to these nipples clan b'c-Cohnected the ends of hose, pipes or similar gas conduits.

3 and 4 denotes lngs'carried by the pipe l and connected to the lugSB by screws andnuts .5 or-other fastening means are the. ends; of an inverted'U shaped frame 6-. This frame approximately intermediate the 'end s thereof is connected by vertical parallel bars 7 t 'th lug 4, said lug being-"located betwee the lugs 3-, U y i 8 denotes a valve carried by pipe section' 1, said valve being of the well known type of shut-off valve; The'stemjQ ofsaid valve is pivotally connected by 'a pin 10 to a lever 11 pivotallycoimected, as at 12;to oneend ofzth'etfrani'eG," The outer'endof the' "lever ll-ilsconnect'edby' a coiled .retractilel' spring-13 to anextension '14 at thelng 4. It

. is also connected to a vertical hand 'ro'd '15 movably. supported by an eyeletilfi. carried by the frame 6.; The upperendf of the rod 15 is looped or provideddwitlra'fsuitable j' raised to open the valve 18, denotesa- ,eylindri'ca and communicatingtherewith. This-casing is provided with a flexible or resilient dia phragni 19, and with acover 20' having a'j central 0 amin Ql aid cover bein secured to o the casing '18 byfsuitable'jme'ans', as

screws 22.

23 denotes a vertical rod connected by able. The upper end of the rod 23 extends throu h the opening 21 and is pivotally connecte to a re ease lever'26, wlnch is pivoted between the bars 7 by a pin 27. The opposite end of said lever is bifurcated, as at 28 to straddle the end of the frame 6 and-prevent the lever from unduly wabbling or shifting. The lever 26 is limited in its movement by a depending hook 29, carried by the frame 6, and connected to said lever, adjacent to the bifurcated end thereof, is a weight holder 30 having-detachable weights The pivoted end of the release lever is provided with a hook 32 and an arm 33. g 34' denotes a latch pivotally mounted between the bars 7 by a pin 35. This latch is provided with a shoulder 36 adapted to engage 'the end of the valve lever 11 and hold the valve in'an open position, and with a hook 37 adapted to be engaged by the hook 32, and with an apertured end'38, which is connectedto the release lever by a coiled. spring 39.

flO denotes a spring'mounted'on'the-endof the fastening screw 5 of the frame 6 and bars 7 said spring-having the ends thereof bent, as at 41 to engage under the frame, and as at 42 to engage the upper edge of the release lever 26.

34 denotes a regulator arranged in the pipe section 1 adjacent to the diaphragm casing. -Thi s regulator comprises a shell having a vertical interior threaded opening 44 communicating with the interior of the pipe section 1 through the medium of oppo sitely disposed vertical slots 45. A screw 46 is adjustably mounted in the shell and isv adapted to control the passage. of gas to the diaphragm casing 18- Operation: A valve constructed as above described operates in-the following manner:-Operation: To set the valve. in an open position, the handle-rod 15 is gri ped and the valve-lever 11' is raised to a low I the shoulder 36 of the latch 34 to engage under the outer end of the valve-lever 11 and retain said lever in an elevated position with the spring 13 under tension. The valve 8 is then opened and gas can pass through the valve to the regulator 34'. This regulator is adjusted in case of an abnormal pressure, whereby the pressure of gas entermg the casing 18 cannot injure or burst the diaphragm within said casing. Assuming that the pressure within the pipe section 1 is reduced, the diaphragm 19 immediately lowers and moves on release lever 26, causing the arm 33 of said lever to impinge the latch 34 and release the valve-lever l1, allowing the tension of the spring 13 to close the valve 8, which remains in a closed position until the handle-rodlfi is elevated. The, springs 40 and 39 coiiperate retaining the: shoulder '36 of the latch 3a in engagementzi withthe valve-lever '11. It is through the-f.

"medium-of the 'weights 31 that the Elia- 0 phragm can beheld against certain excessive" pressures within the ipe section 1.

Having nowdescri ed my invention what I claim as new, is

1. In a valve, the combination with a gas .75

supply I pipe, a shut-off valve carried by said pipe, and a regulator adapted to 'control the passage of gas through said pipe,

of afrhme carried by said pipe, bars connectin said frame to said pipe, a valve lever pivota ly connected to said frame and to the valve stem of .said valve, a handle rod connected to said valve lever and guided by said frame for raising said lever, a

Fspring connected to said lever and adapted "\to normally maintain said'valve m, a closed position, a latch pivotally mounted between.

isaidbars andada ted to engage said valve ever and hold said valve in an open posi:

tion, a release lever pivotally connected to said bars and adapte engagement with said valve lever, and

to hold saidlatch in meansactuated by ,a reduction in the presisure of gas within said gas supply pipe to move said release lever and cause said latch to release said valve lever.

2. In a valve, the combination with a gas supply pipe, a shut-01f valve carried. by

said p pe, and a regulator adapted .to c ontrol the passage of gas through said pipe,

of a frame carried by said pipe, bars connecting said frame to "said pipe, a valve lever pivotally connected'to' said frame and to the valve stem of said valve, a .handle rod connected to said valve lever and guided 10.5

by said frame forraising said lever, a spring connected to said lever, and adapted to normally maintain said valve in a closed position, a latch pivotally mounted between said bars and ada ted to engage said valve lever and hold said valve in an open posi- I tion, a release lever; pivotally connected to said bars and adapted to holdsaid latch in engagement with said valve lever, means actuated bya reduction in the pressure of gas within said gas supply pipe to move said release lever and cause said latch to re lease said valve lever, said-means'including a casing communicating with said pi eand a diaphragm within said casing and a apted to move said release leverby a reduction in the pressure of gas within said gas supply pipe. 3.'In an automatic valve, the combination with a gassupply pipe, a shut-off valve carried by said p1pe,-'of a -frame to said pipe, a lever pivotally connected at one end to said frame carried by said pipe, bars connecting said frame and adapted to open and close saidvalve, a spring. connectingsaid 3 lever to one of said bars, a latch. pivotally mounted between said bars and adapted to engage said lever and hold the valve in an open position, a release lever pivotally mounted between said bars and adapted to engage said latch and release said valve lever, a controlling spring connecting said latch to said release lever, means actuated, by a reduction of the pressure of gas Within said gas supply pipe and adapted to move said release lever and cause said latch to] release said valve lever to close said valve, said means includmg a caslng communicating with said pipe and a diaphragm within said casing and connecting with said release lever.

In testimony whereof I' aflix my signature in the presence of two witnesses.

GEORGE E. GROOKSHANK. Witnesses:

H. B. ENGLE,

J. A. ORUSSMAN, 

